Filling and weighing apparatus and filling and weighing method
The described device addresses the issue of varying container shapes by sequentially filling and weighing, ensuring high accuracy and continuous processing through simultaneous movement of filled and empty containers, thereby maintaining precision and detecting defects.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- SHIBUYA IND CO LTD
- Filing Date
- 2022-04-25
- Publication Date
- 2026-04-15
AI Technical Summary
Existing filling and weighing devices require handling means to be changed based on container shape or form, leading to decreased weighing accuracy and reduced processing capacity due to the need to adjust electronic balances for container weights, which are often heavier than the pharmaceuticals being filled.
A filling and weighing device that sequentially fills and weighs containers, using a filling material supply, weighing, and moving means to measure the total weight of filled containers, then subtracts the empty container weight, allowing for high accuracy and continuous processing without changing handling means.
Ensures high weighing accuracy and processing capacity by maintaining consistent handling and weighing precision regardless of container shape or form, with the ability to detect defective products through weight comparisons.
Smart Images

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Abstract
Description
Technical Field
[0001] The present invention relates to a filling and weighing device and a filling and weighing method for weighing powders, liquids, etc. and filling a predetermined amount into a container.
Background Art
[0002] There is known a filling and weighing device for automatically weighing pharmaceuticals such as powders and liquids and filling them into containers such as vials and ampoules (Patent Document 1). In the filling line of Patent Document 1, electronic balances for weighing empty containers and containers after filling are installed before and after a filling machine that fills a container with powder or liquid, and the empty container weight is subtracted from the weight of the container filled with the pharmaceutical to calculate the filling weight. Also, in filling pharmaceuticals, etc., it is necessary to weigh all items to ensure accuracy and avoid producing defective products.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] However, in a configuration like that of Patent Document 1, where an empty container and a container after filling are weighed, handling for placing the container on the weighing table is necessary, and when the shape or form of the container changes, it becomes necessary to change the handling means. Also, the weighing of the electronic balance needs to be set according to the weight of the container to be weighed, but this is different in order from the weight of the pharmaceutical which is the weighing purpose. Therefore, when the container is heavy, the resolution of the electronic balance decreases and the weighing accuracy of the pharmaceutical as the filling material decreases.
[0005] An object of the present invention is to provide a filling and weighing device that does not require changing the handling means regardless of the shape or form of the container, has high weighing accuracy, and has high processing capacity.
Means for Solving the Problems
[0006] The first invention is a filling and weighing device that sequentially fills containers with a filling material and weighs the total weight of all containers being filled, comprising: a filling material supply means for supplying a predetermined amount of filling material; a plurality of containers for containing the filling material supplied by the filling material supply means; a weighing means for weighing the containers; a filling means for filling the containers with the filling material contained in them; and a moving means for moving the containers between the weighing means and the filling means, wherein the weighing means is used to store the containers supplied by the filling material supply means. After supplying a predetermined amount of filling material to the body, the weight of the container containing the filling material is measured, and after filling the container with the filling material contained in the container using the filling means, the weight of the empty container is measured, and the weight of the empty container is subtracted from the weight of the container containing the filling material to obtain the filling weight of the container filled with the filling material from the container, and the moving means simultaneously moves the container containing the filling material from the weighing means to the filling means and moves the empty container from the filling means to the weighing means for multiple containers. The filling means comprises a plurality of holding means for holding the container, and in parallel with the filling operation in which the container is held by one of the holding means and the filling material is filled into the container, the container is transferred to the transport means by different holding means. It is characterized by the following:
[0007] The second invention, a filling and weighing device, is characterized in that, in the first invention, the filling means includes a holding means for holding and inverting a container, and inverts the container received from the moving means to fill the container with the contents contained within it.
[0009] The 3 The filling and weighing method of this invention involves sequentially filling containers with a filling material and weighing the total weight of all containers being filled. The method involves supplying a predetermined amount of filling material to a container, weighing the weight of the container containing the filling material, filling the container with the filling material, then weighing the empty container, and subtracting the weight of the empty container from the weight of the container containing the filling material to determine the weight of the containers filled with the filling material from the container. In addition, the weight of the empty container is compared with a predetermined range, and if it exceeds the range, the container filled with the contents from the empty container is deemed to have insufficient filling weight and is judged to be a defective product. It is characterized by the following. [Effects of the Invention]
[0010] According to the present invention, it is possible to provide a filling and weighing device that does not require changing the type of handling means regardless of the shape or form of the container, has high weighing accuracy, and has high processing capacity. [Brief explanation of the drawing]
[0011] [Figure 1] This is a front view showing the configuration of a filling and weighing device, which is one embodiment of the present invention. [Figure 2] This is a plan view of the container handling device. [Figure 3] This is a plan view showing the arrangement of the first and second filling device and the cup moving device. [Modes for carrying out the invention]
[0012] Embodiments of the present invention will be described below with reference to the drawings. Figure 1 is a schematic front view showing the configuration of a filling and weighing device, which is one embodiment of the present invention.
[0013] In this embodiment, the filling and weighing device 10 fills containers V, such as vials, with chemicals (fillings) M, such as powders or liquids, within the working chamber 12A of the isolator 12. The containers V are intermittently transported in a single line in the plane of the paper shown in Figure 1 by a container transport device 14 provided within the working chamber 12A. As shown in the plan view of Figure 2, the container transport device 14 has grippers 14A that grip the neck of the containers V arranged in a single line at equal intervals on an endless track. In this embodiment, four filling and weighing devices 10 are arranged in series along the movement path L of the containers V, and chemicals M are simultaneously filled into four containers V that are sequentially transported and stopped below the filling position P1 of each filling and weighing device 10 from among the containers V held by the grippers 14A. Therefore, the container transport device 14 in this embodiment transports in units of four containers V. Note that the number of containers V that are filled simultaneously is not limited to four, and the intermittent transport of containers V corresponds to the number of containers V that are filled simultaneously.
[0014] A funnel 16 is inserted from above into the mouth of each container V, which is stopped below the filling position P1 of each filling and weighing device 10. The funnel 16 is raised and lowered by a funnel lifting device 20 attached to a support column 19 installed on a table 18 in the work chamber 12A, and inserted into and removed from the mouth of the container V. Above each funnel 16, a reversing gripper (holding means) 24 (24A, 24B) is positioned to grip a cup (container) 22 containing the chemical M. Each reversing gripper 24 is provided to be openable and reversible by a gripper reversing device 26 (26A, 26B), and each gripper reversing device 26 is made to be able to move up and down between an elevated position and a lowered position by a gripper lifting device 30 via a link 28, and constitutes a first or second filling device (filling means) 32A, 32B. In Figure 1, the inverting gripper 24A of the first filling device 32A is in the lowered position, and the inverting gripper 24B of the second filling device 32B is in the raised position. Furthermore, the four filling and weighing devices 10 in this embodiment are installed in the working chamber 12A of a common isolator 12, and two of them are shown in the plan view of Figure 3.
[0015] The gripper reversal device 26A of the first filling device 32A is supported by a support member 34A fixed to the ceiling of the work chamber 12A via a link 28, and is able to move up and down by the swinging of the link 28. On the other hand, the gripper reversal device 26B of the second filling device 32B is supported by a support member 34B that is rotatably mounted on the ceiling of the work chamber 12A via a link 28 (see Figure 3), and is supported so as to be able to move up and down and rotate left and right by the swinging of the link 28 and the rotation of the support member 34B. The rotation of the support member 34B is performed by swinging a lever 36 provided on the support member 34B by operating an air cylinder 38 which serves as a rotational drive means.
[0016] In this embodiment, for example, the support member 34A of the first filling device 32A is positioned upstream along the movement path L of the container V, and the support member 34B of the second filling device 32B is positioned downstream. The inverting gripper 24A of the first filling device 32A moves up and down above the moving funnel 16, and when the inverting gripper 24A is in its raised position, a cup moving device (moving means) 42 that holds and moves the cup 22 is positioned opposite the gripper inverting device 26A to the inverting gripper 24A. Furthermore, the opposite side of the gripper inverting device 26A and the cup moving device 42 of the inverting gripper 24A is the weighing position P2 where the cup 22 that will be placed on the weighing platform 40A of the electronic balance 40 is located. The electronic balance 40 weighs the cup 22 placed on the weighing platform 40A, and the weighing result from the electronic balance 40 is input into a calculation means C such as a computer for recording and calculation. The electronic balance 40 and the calculation means C constitute the weighing means of this embodiment.
[0017] Above the weighing platform 40A, a chemical supply device (filling supply means) 46 is positioned to supply chemicals M to the cup 22 placed on the weighing platform 40A. The chemical supply device 46 is equipped with an auger screw to dispense powder when the chemicals M are in powder form, and rotates the auger screw by a set predetermined amount to supply a predetermined amount of powder to the cup 22. When the chemicals M are in liquid form, it is equipped with a flow meter, and when a set flow rate is measured, it closes a valve to supply a predetermined amount of liquid to the cup 22. In either case, after supply, the amount of rotation of the auger screw or the set value of the flow rate of the flow meter for the next supply of chemicals is corrected based on the weighing result of the electronic balance 40.
[0018] As shown in Figures 1 and 3, the cup moving device 42 includes grippers 44 extending radially from a vertical rotating shaft 42A supported on the ceiling of the working chamber 12A of the isolator 12. In this embodiment, two grippers 44 extending in opposite radial directions are provided, and the rotating shaft 42A is rotatable in units of 180° by a motor (not shown). When one gripper 44 of the cup moving device 42 is positioned above the weighing platform 40A, the other gripper 44 of the cup moving device 42 faces the reversing gripper 24 which is in the raised position, allowing the cup 22 to be transferred between the reversing gripper 24 and the cup moving device 42. By rotating the cup moving device 42, the cup 22 can be moved between the electronic balance 40 as a weighing means and the first and second filling device 32A and 32B as filling means. In this embodiment, the lowered position of the inverting gripper 24A of the first filling device 32A is defined as the filling position P1 where the cup 22 is positioned and inverted, the weighing position P2 on the weighing platform 42A where the cup 22 is positioned and weighed, and the raised position of the inverting gripper 24A of the first filling device 32A is defined as the handover position P3 where the cup 22 is positioned and handed over.
[0019] The support member 34B of the second filling device 32B is located on the opposite side of the transfer position P3 and the cup moving device 42, with the gripper reversal device 26A of the first filling device 32A in the raised position in between. Therefore, the gripper reversal device 26B of the second filling device 32B is capable of swinging left and right around the support member 34B, and by operating the air cylinder 38 of the second filling device 32B (contraction operation), the gripper reversal device 26B of the second filling device 32B is positioned directly below or directly above the gripper reversal device 26A of the first filling device 32A, and the cup 22 held by the reversal gripper 24B is positioned at the filling position P1 or the transfer position P3 above the movement path L of the container V. From this state, the gripper reversal device 26B is positioned outside the lifting path of the gripper reversal device 26A, and the cup 22 held by the reversal gripper 24B is positioned at the retracted position E which is on the side of the movement path L downstream in the transport direction of the container V. The gripper reversal device 26B is moved between these two states. As a result, when the reversing gripper 24A of the first filling device 32A reaches the lowered position (filling position P1), the air cylinder 38 is activated (extension operation) to retract the gripper reversing device 26B and move the reversing gripper 24B to the retracted position E, thereby avoiding interference with the gripper reversing device 26A of the first filling device 32A as it rises, and at the upper end, the air cylinder 38 is activated (retraction operation) to move the reversing gripper 24B from the retracted position E to the transfer position P3. Furthermore, when the reversing gripper 24A of the first filling device 32A reaches the raised position (transfer position P3), the air cylinder 38 is activated (extension operation) to retract the gripper reversing device 26B of the second filling device 32B, moving the reversing gripper 24B to the retracted position E, thereby avoiding interference with the gripper reversing device 26A of the first filling device 32A, and then the air cylinder 38 is activated (retraction operation) at the lower end to move the reversing gripper 24B from the retracted position E to the filling position P1.
[0020] That is, the lifting and lowering of the gripper reversing devices 26A and 26B of the first and second filler feeding devices 32A and 32B and the lifting and lowering of the reversing grippers 24A and 24B by the gripper lifting and lowering device 30 are performed in the vertically opposite directions with the gripper reversing device 26B of the second filler feeding device 32B in the retracted state and the reversing gripper 24B in the retracted position E. In FIG. 3, the state where the gripper reversing device 26B of the second filler feeding device 32B is in the retracted state and the reversing gripper 24B is in the retracted position E is shown.
[0021] When the reversing gripper 24A of the first filler feeding device 32A is located at the lowered position (filling position P1), the reversing gripper 24B of the second filler feeding device 32B is located at the delivery position P3 directly above the reversing gripper 24A of the first filler feeding device 32A. In this state, the gripper reversing device 26A of the first filler feeding device 32A can reverse the reversing gripper 24A by 180°. The cup 22 held by the reversing gripper 24A is turned upside down directly above the funnel 16, and the chemical M is put into the funnel 16 to fill the container V with the chemical M. On the other hand, the reversing gripper 24B of the second filler feeding device 32B delivers the empty cup 22 after filling to one gripper 44 of the cup moving device 42 and receives the filled cup 22 containing the chemical M from the other gripper 44. Conversely, when the reversing gripper 24A of the first filler feeding device 32A is located at the raised position (delivery position P3) and the reversing gripper 24B of the second filler feeding device 32B is located at the filling position P1, the reversing gripper 24A of the first filler feeding device 32A delivers the cup 22 to the gripper 44, and the reversing gripper 24B of the second filler feeding device 32B fills the container V with the chemical M.
[0022] In addition, in the present embodiment, a striking device 48 including a striking rod 48A that can swing vertically is provided at the upper end of the column 19 to which the funnel lifting and lowering device 20 is attached. The striking rod 48A is located upward during standby, and after the cup 22 held by the reversing grippers 24A and 24B is turned upside down, it is swung downward toward the bottom surface of the cup 22. As a result, the chemical M in the cup 22 is completely shaken off into the funnel 16 by the impact from the striking rod 48A and fills the container V.
[0023] Next, referring to FIGS. 1 to 3, the filling operation of the chemical M into the container V using the cup 22 by the filling and weighing device 10 in the present embodiment will be described.
[0024] In the present embodiment, for example, three cups 22A to 22C are sequentially transferred between the electronic balance 40 and the first and second filling material input devices 32A and 32B, and the chemical M is filled into the container V as the filling material.
[0025] When one gripper 44A of the cup moving device 42 holds the cup (actual cup) 22A in which the chemical M has been supplied and weighed at the weighing position P2 and moves the actual cup 22A to the delivery position P3, the other gripper 44B moves the empty cup (empty cup) 22B received from the reversing gripper 24A of the first filling material input device 32A as one filling means at the delivery position P3 onto the weighing table 40A of the electronic balance 40 and releases the holding. At the delivery position P3, the actual cup 22A is held by the reversing gripper 24A of the first filling material input device 32A. At the weighing position P2, the empty cup 22B placed on the weighing table 40A is weighed, and the weight of the empty cup 22B is input to the calculation means C as the weighing result.
[0026] Next, the chemical supply device 46 rotates the built-in auger screw by a set rotation amount (rotation angle) to supply a predetermined amount of the chemical M to the empty cup 22B on the weighing table 40A. The electronic balance 40 weighs the weight of the cup (actual cup) 22B to which the predetermined amount of the chemical M has been supplied, and the weight of the actual cup 22B is input to the calculation means C as the weighing result from the electronic balance 40. When the weighing is completed, the other gripper 44B is closed, the actual cup 22B is held by the other gripper 44B, and is moved to the delivery position P3 by the rotation of the cup moving device 42.
[0027] While the cup 22B is positioned at weighing position P2, and the electronic balance 40 is weighing the empty cup 22B, the chemical supply device 46 is supplying the filling material to the empty cup 22B, and the electronic balance 40 is weighing the actual cup 22B containing the chemical M, one gripper 44A of the cup transfer device 42 transfers the actual cup 22A containing the chemical M, which is being held at transfer position P3, to the reversing gripper 24A of the first filling material input device 32A of the filling means. The gripper reversing device 26A of the first filling material input device 32A is then lowered, causing the actual cup 22A to be positioned at filling position P1. Simultaneously, the gripper reversing device 26B of the second filling device 32B, which is the other filling means, is raised in a retracted state. After it is raised, the reversing gripper 24B moves from the retracted position E to the transfer position P3 due to the operation (decompression movement) of the air cylinder 8, and the empty cup 22C is transferred from the reversing gripper 24B to one of the grippers 44A of the cup moving device 42. Then, as the cup moving device 42 rotates, the actual cup 22B on the weighing platform 40A is moved to the transfer position P3 by the other gripper 44B, and at the same time, the one gripper 44A, holding the next empty cup 22C received from the reversing gripper 22B of the second filling device 32B, moves to the weighing position P2 on the weighing platform 40A. At the transfer position P3, the actual cup 22B is held by the reversing gripper 24B of the second filling device 32B, which is the other filling means. As the above series of operations are repeated, the actual cups 22 that have been supplied and weighed at weighing position P2 are alternately transferred to the reversing grippers 24A and 24B of the first and second filling device input devices 32A and 32B at transfer position P3, where the filling is filled into the container V at filling position P1. At the same time, the empty cups 22 that have been transferred from the reversing grippers 24A and 24B at transfer position P3 are alternately moved to the weighing platform 40A of the electronic balance 40 at weighing position P2, where the empty cups 22 are weighed.
[0028] According to the above series of operations, while the empty cup 22B is weighed and the chemical M is supplied at weighing position P2, the chemical M is filled into container V from the actual cup 22C at filling position P1. Subsequently, while the actual cup 22B is weighed at weighing position P2, the actual cup 22A moves from the handover position P3 to the filling position P1, and the empty cup 22C moves from the filling position P1 to the handover position P3. In the above calculation means C, the weighing results of the empty cup and the weighing results of the actual cup are input sequentially and recorded alternately in the order they are input. Furthermore, it has a number of addresses associated with each gripper 14A of the container transport device 14 for storing weighing results (weighing data), and is equipped with a shift register that shifts the stored weighing data in accordance with the movement of the gripper 14A (container V). In this embodiment, when the weighing result of the empty cup 22 is input, the chemical M is filled into the container V from the actual cup 22. Therefore, when the weighing result of the empty cup 22 is input, the calculation means C stores the weighing data of the actual cup recorded three times prior to the weighing data of the empty cup being recorded this time at the address corresponding to the gripper 14A stopped below the filling position P1. At the same time, the weighing data of the empty cup being recorded this time is subtracted from the weighing data of the actual cup stored at the address corresponding to the gripper 14A that was previously stopped below the filling position P1, and the weighing data at that address is rewritten. That is, if the empty cups and actual cups are weighed in the order of cups 22A, 22B, and 22C at the weighing position P2, then when the empty cup 22B is weighed at the weighing position P2, the actual cup 22C is being filled into the container V at the filling position P1. The input of the weighing result for this actual cup 22C is from before the weighing of cup 22A, which was before the weighing of empty cup 22B at weighing position P2. Therefore, the weighing data of the empty cup 22B that is being input this time, and the weighing data of actual cup 22C three weigh-ins prior to the weighing of actual cup 22A and empty cup 22A, will represent the weight of the actual cup 22C being filled this time.Furthermore, since the empty cup 22B, for which weighing data is entered this time, was filled one step before the cup 22C being filled this time, the weighing data stored at an address shifted from the position corresponding to the filling position P1 set on the shift register one step earlier corresponds to the weight of the actual cup 22B. By subtracting the weight of the empty cup 22B entered this time from this, the filling weight of container V, into which the chemical M was filled from the actual cup 22B, can be obtained. In this way, the weight of the contents filled into container V is determined by subtracting the weight of the empty cup 22 after it has been filled into container V from the weight of the cup 22 containing the chemical M. The weight of the empty cup 22 itself is known, but by weighing the cup 22 after filling, it is possible to more accurately determine the filling weight by subtracting any residual powder or liquid from the contents that may be adhering to and remaining on the cup 22. In calculation means C, the weight of the weighed empty cup 22 is compared with a predetermined range. If there is a large amount of residual filling and the weight of the empty cup 22 after filling exceeds the predetermined range, the filling weight will be insufficient, and the corresponding container V is determined to be defective. The weighing data stored at the corresponding address is then overwritten with the subtracted data, and the fact that it is defective is recorded at the same address. The cup 22 with residual filling is used for the next filling operation to continue supplying and storing the same filling. Alternatively, the determination of whether a container V after filling is defective may be made by comparing the filling weight, obtained by subtracting the weight of the empty cup 22, with a predetermined range.
[0029] Between the transfer position P3 and the filling position P1, the gripper reversing devices 26A and 26B of the first and second filling device 32A and 32B move up and down simultaneously in opposite directions. When the gripper reversing device 26B is raised in the retracted position, the reversing gripper 24B is rotated from the retracted position E to the transfer position P3 by the operation (retraction movement) of the air cylinder 38. As a result, the reversing grippers 24A and 24B of the first and second filling device 32A and 32B alternately transfer empty cups 22 and full cups 22 with the gripper 44 of the cup transfer device 42 located at the transfer position P3.
[0030] When one of the gripper reversing devices 26 of the first and second filling device 32A and 32B is lowered, the funnel 16 is also lowered in synchronization with the movement of the lowering reversing gripper 24, and the tip of the funnel 16 is inserted into the container V which is stopped below. When this reversing gripper 24 reaches the filling position P1, the reversing gripper 24 is reversed by the gripper reversing device 26, and the chemical M in the actual cup 22 held by the reversing gripper 24 is poured into the funnel 16 and filled into the container V. During this time, the reversing gripper 24 of the other gripper reversing device 26 of the first and second filling device 32A and 32B transfers the empty cup 22 to the gripper 44 of the cup transfer device 42 at the transfer position P3, and at the weighing position P2, weighing of the cup 22 is performed by the electronic balance 40 and the filling material is supplied by the chemical supply device 46.
[0031] Furthermore, the cup 22, which has been inverted and into which the chemical M has been poured into the funnel 16, is struck at the bottom by the striking rod 48A, and then inverted again by the gripper inversion device 26 to stand upright. At the same time that the cup 22 held by the inversion gripper 24 of the other filling device (32A or 32B) is moved to the filling position P1, the cup 22 is moved to the transfer position P3. At this time, the funnel 16 that was inserted into the container V is also raised and removed from the container V, and the container V is moved along the movement path L by a predetermined pitch.
[0032] As described above, in the filling and weighing apparatus and filling and weighing method of this embodiment, by interposing a cup (container) for weighing and filling, it becomes unnecessary to change the container handling means even if the shape or form of the container changes. Furthermore, by simultaneously moving the actual cup from the weighing position to the filling position and moving the empty cup from the filling position to the weighing position for multiple cups, container filling can be performed continuously and efficiently. In addition, since the filling material can be weighed using a cup that is lighter than the container, it is not necessary to adjust the weighing of the electronic balance to the weight of the container, and the filling material can be weighed with high precision without reducing the resolution of the electronic balance.
[0033] The number of filling and weighing devices along the container's movement path is not limited to this embodiment. Furthermore, the number of grippers on the cup transfer device is not limited to two; there may be three or more. The number of cups handled simultaneously will increase or decrease in accordance with the number of grippers. While this embodiment uses vials as an example, other container forms are also used. Similarly, the container transport device is not limited to the configuration shown in this embodiment, but may also transport containers by simply placing them on it. The configuration can be selected according to the container's form. [Explanation of symbols]
[0034] 10 Filling and measuring device 22 cups (containers) 24 Reversible gripper (holding mechanism) 32A First filling device (filling means) 32B 2nd filling device (filling means) 40 Electronic balance (weighing means) 42. Cup transfer device (means of transport) 46. Chemical supply device (filling material supply means) M. Pharmaceuticals (filling material) P1 filling position P2 Weighing position V container
Claims
1. In a filling and weighing device that sequentially fills containers with a filling material and weighs the total weight of all containers being filled, The system comprises a filling supply means for supplying a predetermined amount of filling material, a plurality of containers for containing the filling material supplied by the filling supply means, a weighing means for weighing the containers, a filling means for filling the filling material contained in the containers into a container, and a moving means for moving the containers between the weighing means and the filling means. The weighing means, after supplying a predetermined amount of filling to the container by the filling supply means, weighs the weight of the container containing the filling, and after filling the container with the filling contained in the container by the filling means, weighs the weight of the empty container, subtracts the weight of the empty container from the weight of the container containing the filling, to obtain the filled weight of the container from which the filling has been transferred. The moving means simultaneously moves a container containing the filling material from the weighing means to the filling means, and moves an empty container from the filling means to the weighing means, for multiple containers. The filling means comprises a plurality of holding means for holding the container, and the filling operation involves holding the container with one of the holding means and filling the container with a filling material, while simultaneously transferring the container to a moving means using different holding means.
2. The filling means comprises a holding means for holding and inverting a container, and the filling weighing device according to claim 1 is characterized in that it inverts the container received from the moving means and fills the container with the contents contained in the container into a container.
3. In a filling and weighing method in which a filling material is sequentially filled into containers that are being transported, and the filling weight of all the containers being filled is measured, A predetermined amount of filling material is supplied to the container, the weight of the container containing the filling material is measured, the filling material contained in the container is then filled into a container, the weight of the empty container is measured, and the weight of the empty container is subtracted from the weight of the container containing the filling material to determine the filled weight of the container from the empty container. A filling and weighing method characterized by comparing the weight of the empty container with a predetermined range, and if it exceeds the predetermined range, determining that the filling weight is insufficient and that the container filled with the contents from the container is a defective product.
Citation Information
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